ICD-10-CM 2027
ICD-10 code for cholesteatosis
From the official ICD-10-CM alphabetic index entry “Cholesteatosis, diffuse”. Page updated September 29, 2026.
About coding cholesteatosis
The ICD-10-CM code for cholesteatosis is H71.3 (Diffuse cholesteatosis).
Within H71 (cholesteatoma of middle ear), H71.3 is specifically for diffuse cholesteatosis. Related codes cover cholesteatoma of attic (H71.0), cholesteatoma of tympanum (H71.1), cholesteatoma of mastoid (H71.2) and unspecified cholesteatoma (H71.9).
To report this condition, pick the subcode that matches the documentation: H71.30 (unspecified ear), H71.31 (right ear), H71.32 (left ear) and H71.33 (bilateral).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.